Ice-cream freezer.



C. K. GREAVES.

Patented sept. 13,1910.

om s w. ,6 wv EM@ w, NWN ma kZ 9 Q ,erro/mera o. K. GREAVES. ICE CREAM FREEZER. APPLIOAIION FILED NOV. 23, 1909.

Patented Sept. 13, 1910.

.55 in I Tianipulating the rods. `'lfhep'plate' 14 is Vas CHARLES KNIGHT GREAVES, 0F WAGO, TEXAS.

ICE-CREAM FREEZER.

Specification of Letters Patent.

Patented Sept. 13, 1910.

Application filed November 23, 1909. Serial No. 529,569.

To all whom it may concern:

Be it known that I, CHARLES K. Gaiam/Es,

a citizen of the United States, and a resident of iVaeo, in the county of McLennan and State of Texas, have made `certain new and useful Improvements in Ice-Cream Freezers, of which the following is a specilient-ion.

My `invention is an improvement in ice cream freezers, and consists in certain novel constructions, and combinations of parts, hereinafter described and claimed.

The object of the invention is to provide a power freezer, by means of which the cream or the like may be frozen by the use of ammonia, or by the use of ice or salt, or by the use of both.

Referring to the drawings forming a part hereof, Figure 1 is a vertical longitudinal section of the improvement, Fig. 2 is a front view, Fig. 3 is an end view, Fig. 4; is a transverse vertical section of the freezer, on the line'4.-4, of Fig. 1, Fig. 5 is a front view of a portion of the stirring device,and Fig.- 6 is a section on the line 6 6 of. Fig. 5.

The embodiment of the invention shown in the drawings, cmnprises a frame, oomposed in the present instance of longitudinal hars 1, uprights 2, cross hars z, and braces 4, and'tlie casing '5 of the freezer proper is supported on one end of the frai'ne, while at the other end is a bracket (3, provided with -an upper sectional hea-ring 7, and a lower bearing 8. The casing 5 is square. in cross section asshown in Fig. 1, and a cylindrical receptacle Q'isgsupported lin the casing, the

4 ends of the casing having circular openings,-

through which the ends of the receptacle eX-` tend, and .the receptacle 'is provided with annular iiinges 1t), which are secured to the Acasing ends by screws or nails 11.

, 4One of the headsI 12 "of the receptacle is removable, and thc-receptacle 'adjacentto the said head is provided with longitudinally extending bracket arms 13, which extend through openings inthe e of a plate 14,

`spaced apart from the eri ,of tho receptacle, and having rods threaded therethrough and .engagi-ngthe head tosecure it in plinio a' ainsi'J the endfof 'the' receptacle. lWedge pinsvlt-,are passed through 'openings in .the outerends of the .bracket arms, for'securing the plate in place, and the rods '15, are provided. with hand wheels 17, .for convenience provided with a Central opening 18, for a purpose to be presently described, and the head is provided with an annular groove on its inner face for receiving the end of the receptacle. Itwill be evident that the head may he forced tightly against the receptacle end by the threaded rods.

Near the bottom and at one side of its journaled in the hearing 8 before mentioned,

and is provided with a pinion 23 bet-Weenv the bearing and the casing. -The end ofthe exs' tension adjacent to the journal 22 is .provided with a packing nut. 24, through Whieh the journal extends, and the journal 21-.is fljournaled in a block 25 on the head 12. The extension 19 is also provided with an outlet pipe 26 adjacent to the head 12, which delivers to a Cask or receiver 27 semi-circular .iii cross sect-ion, and secured to the' end of the'sumiorting frame as shown. The casing is provided with an outlet pipe 28 at the opposite end from the head 12, and a tank 2t) is supported on the easing at the opposite end from the pipe 28.

A shaft is journaled in the receptac-leeiit the eenter thereof, and the- 'said shaft oonsists of asolid section 30, and a hollow section 31. The solid section is journaled in the bearing i', and in a packing nut 32 in thel adjacent head of the receptacle, and ispro- 'vided with a gear wheel Eli-5. meshing with the pinion 255, and with a lpnl-ley I-l-t, for receiving a. bolt l'roi-n any suitable source 4ofpower, 'whereby to rotate the shaft.

.The solid suction of the shaft?, is provided `in its inner end with a. tapering sot-,kot 3.5.,

polygonal in vross section, and the l-iollow sei-.tion with a lngl :iti tilting the socket, ain-d adjaieent to the lug the said section -p'Ir-ovided with a plurality of radial openings-37.

At its opposite end the hollow section ils A \'ortieal pipo 88 1J :arrangedoutside of the plate l--l, and is provided with a. 'latenal extension or nipplet), fitting within the-end hf the hollow section v1, a `packing nut 44 y pipe' E36.l lowerisapplied to the pulley 34,

thus rot-ating the shaft iiD- 31, continuously y encircling the said nipple and engaging'the end of thc section to make a tight joint. The

upper end of the pipe 3S is flaring as at 40,

and is directly below a faucet 4 1leadi1ig from the tank 29 before mentioned, and having aI valve 45. A rod 42 extends down wardly from the pipe, and a weight 43 is connected withv the rod, for counterbalancing the pipe and retaining it in vertical position.

iv pair of'reservoirs 46 and 46a are arranged at one side of the supporting frame, (Fig. ,and theoutlet pipe 28 of the casing, is extended laterally as at 28, and is provided with two branches 47 and 4S leading into the receptive arecervoirs, each branch having a.

valve 49 and 50 respectively. An inlet pipe.

2G is also extended laterally from the bottom and front of the casing and is likewise provided with two branches 51 and coinmunieating with the Vreceptive reservoirs, each branch having a valve 53 and 54, respectively. The branches 47 and 48 open from the top of `the reservoir as shown iii F ig. 2, and the branches 51 and 52 open near-the bottom thereof, as indicated by dottedlines in the same gure. The hollow' shaft sect-ion 31 is provided at spaced intervals with sleeves 55, and each of the sleeves is provided with op -positely extending arms 5G, and the correspoiiding arms on each side of the shaft' seci 31. The iiow may be regulated by the faucehf. From the shaft section it is discharged intox;

tion,- are connected by bars 57 parallel with the shaft section.

As shown in 4ligsti and G, the bars 57 which connect thev arms 5G are grooved throughout their lengt-h on the outer edges and a plate 58 is seated in the groove of each bai'. the groove are provided with registering slots 59, which are radial to the shaft section, and the plate is providedwith a. traiis verse pin 60, whose ends -inove in the slots, the extremities being headed as shown at G1. The plates are also provided with depres- `sions-oi' recesses (5I-S, and coil springs (i2 are seatedin the recesses, anita'ct inwardly' to Near the ends of the bar, the sides of' 'foieertlicplates outwardly from the bar.

lVlie'ii the shaft' consisting of the .-.ections 30f-31 is rotated, the platesi move in 'contact with the inner walliof thereceptacle, but may yieldinwardly, should they meet1 an obstruction. p

In operation, the material to be frozen is placcilvin the tank 2S) on ,the easing,y and is discharged through the vert-ical pipe 38'aiid the extension 32) into the hollow shaft section the receptacle through the openings 37'. I`liex.lA

dasher or s tirrcr consisting of shaft, arms,

bars and plates, thoroughly mixes the imite r rial, and finally pass` it into the extension 19 ofthe receptacle. The screw eonveyer moves -tlie frozen material to the front end of the `machine, 'and 1t is discharged through the' and also the screw conveyer. The cooling the jacket of the rece tacle by means of the pipes 2G 'and 514452', lie said medium entering by either branch 5l or 52, and dischargcorresponding branch of theing by the pipe v28e;

One of the reservoirs 4G or 4G is adapted to contain the usual ammonia pipes, while the other is adapted to contain the usual sale i and ice mixture, and a pump (S5 is preferably interposed in thc 'outer pipe 2G to supply the cooling medium to the casing.' By properly manipulating the valves 49-50 and 53h54, they casing may be vconnected,

with either reservoir.

The cooling medium enters the casing at the lower front end thereof, and the material tov bev frozen enters the receptacle at the adjacent end, so that the coldest part of the medium comes into Contact with the warirlestv portion of the material. l

The parts 1n the receptacle may beveasily removed for cleaning, by releasing or loosening the rods 15, and taking out-the head 12.

The pinion Q3 is keyed to the shaft 22, so

that the shaft may' be slipped out of-.the pinion for removal. The pipe 38 may be removed by loosening the packing nut 44, and the shaft section '31 brings away all of the daslier or stirrer, when it is removed fronrthe socket of the solid section.A The of the ends ot the receptacle being open, a.v

removable: head vfor closing the openreiid, means foiforcing .the head-.into position to close said open end, said lreceptaclehavingv ico iie

an extension at one side near its bottom, said,

receptacle communicating therewith; and having an Loutletnear l.the reinovalalev means for delivering the materialto-be cooled'into the receptael e,.a `dasher eonnected with the shaft, means for rf'ita'ti'n'g the 'V shaft, a driving connection between the shaft a cooling medium'to the casini?.

2g-u1u combination, "a supportingframe,

casing thereon, ,a cylindfigal receptacle siipf ported inthecasing, and having its ends eX- reinovable head for closing the open end,

vmeans forV forcingr the head into position t0 lextension extending the fullv length ofathe` Y andthe eonveyer, and means forsupplying y' -v `tending-throughthe ends of thecasin onewl `of the ends of the receptacle being o en, a

115 head .a screw conveyer in the extension, a.` .1 'shaftjournaled coaxiallyV ofthe receptacle,

close said open end, said receptacle having an extension at one side near its bottom, said extension extending the full length of the receptacle and communicating therewith, and having an outlet near the removable head, a screw conveyor in the extension, a

' shaft jonrnaled coaxially of the receptacle,

means for supplying the material to be cooled to the receptacle, a dasher o rated by the shaft, and nieans for supp ying a cooling medium to the casing.

3.111 combination, a substantially cylin drical receptacle arranged horizontally, a, hollow shaft journaled coaxially of the receptacle and rovided with radial discharge openings, seitig shaft extending beyond thererep'taele at one end, a vertical oipe having a inmune engaging the extends end of the shaft, the upper end of the pipe being -funnel-sha e, and Ia counter-balance for retainat spaced intervals, bars connecting the corresponding arms, said barseach having a longitudinal groove in its outer edge, a plate in each groove, the side Walls of the oove being transversely slotted at each en pins arranged transversel of the plates and engaging the slots to imit the movement of he p ates, and springs normally pressing said plates outwardly.

JAMES. H. BARNARD, J. E. TURNER. 

